Symptoms
4.7 Upgrade issue - DB NULL error
Diagnoses
When doing a K2 upgrade from 4.6.8 to 4.7 and then deploy a K2 4.7 package onto the environment this is when the issue occurs whereby whenever you try to open a form you get an error saying 'Object cannot be cast to DB NULL to another types'.
Is their a way to get around this ?
Resolution
This is a known issue, please do contact K2 support to be able to obtain a fix to be applied to this environment.